Lacquered or protective-coated can.



J. G. HODGSON. LAGQUERED 0E PROTECTIVE COATED GAN.

Patented' Apr. 28, 1914.

2 SHEETS-SHEETL j@ 4 APPLICATION FILED MAR. 1B, 1907.

. l @m22 r: v J0@ d Haag/50m y/LWMQ? L I J. G. HODGSON. LAOQUERED OR PROTECTIVE COATED GAN.

APPLICATION FILED MAR.18, 1907. 1,094,899., Patented Apr. 28, 1914.

2 SHEETS-SHEET 2.

` entran srnrngs rarnnr cierren. l, 'l

JOHN G. HODGSON, 0F MAY WOOD, ILLINOIS, ASSIGNOB. T0 MIERICAN CAN OG IWIiNY.

OF NEW YORK, N. Y., A CORPORATION OF NEIN JERSEY.

LACQUERED 0R PROTECTIVE-COATED CAN.

To all whom it may concern Be it known that I, JOHN Gr. HoDGsoN, a citizen of the United States, residing in Maywood, in the county of Cook and State of Illinois, have invented a new and useful Improvement in Lacquered or Protective-Coated Cans, of which the following is a specification. j V

The object of my invention is to provide a lacquered or protective coated can for use in packing or preserving food products, which will be of a simple, eiiicient and durable construction, capable -of being rapidly `and cheaply manufactured, in which the seam or seams of the cans may be made perfect and hermetically tight by soldering, in which the solder will not smear, coat or extend over the inside surface of the can adjacent to the seam or seams, in which the protective coating may be' applied to the sheets of tin plate from v which the cans are formed while they are in the flat, in which the heat or flame of the soldering operation .will not burn, blister or injure the protective coating or cause it to crack or peelctl, in which the protective coating will extend over the entire interior surface of the can, including body, top and bottom heads,` and, also cap, if a separate cap is employed, and in which the protective coating will be dry, hard, solid, firmly adherent, eectually protective, durable under action of acids or other ingredients in the food products, and also odorless, tasteless, tlavorless, harmless and sanitary.

My invention consists in the means I have discovered for practically accomplishing this result. I have discovered and demonstrated by my experiments that by coating 'the sheets of'tin plate from which the parts of the canv are to be formed, upon one'or'both sides (according as theV protective coatinv' is wanted upon only the inside or upon Iboth inside and outside of the can) with boiled linseed oil', suitably cut or thinned with tur pentine or other solvent or drier, while the sheets of tin plate are in the flat, the coating extending y over the entire surface of the sheet, and then baking or drying the same -in a suitable oven or drier at a temperature l.of

Speciication of Letters Patent.

Patented Apr. 28,1914.

Application led March 1,8, 1907. Serial No. 362,944.

` from 300 to 400Q Fht., for al period of from two to three hours, until the coating becomes hard, dry, solid, and rmly adherent, that the sheets of tin plate thus treated may then be cut and formed up into can bodies, `can headsl and can caps, and the parts of the can assembled and the seams soldered, the same as though such protective coating had not been previouslyapplied to the sheets; and that such hard, dry, solid protective coating extending into the seam portions of the can which are to be united by the solder, will not prevent the proper and eiicient union of the parts by the solder, or in anyway interfere with the soldering operation, or with the hermetic tightness and perfection of the soldered seams or joints; and also that such dry, hard, solid protect-ive coating will effectually prevent vthe solder flowing through the seam. into and upon the inner surface ofthe can adjacent to the seam and lcoating and smearing such portions with solder as has heretofore always taken place to a greater or less extent. And I have further discovered that the heat of the soldering loperation will not burn, injure, blister or cause tocrack or peal off the protective coating upon the inside of the can atthe portions thereof adjacent to the soldered seam or seams; and also that such protective .coating acts as an efficient protection against the action of fruit or other acids or ingredients of the ordinary food productsfcustomarily packed in cans, and that this protective coatand has noinjurious action upon the food products packed in the cans.

In the accompanying drawing, forming la part of this specification, Figure '1 is a gentral vertical section of a lacquered or protective coating preserving can embodying my Ainvention. Fig. 2 is a horizontal section.

Figs. Bland 4 are enlarged sections through the side seam before and after soldering. Figs. 5 and 6 are enlarged sections through one of the end seams of t-he can before and after soldering. Figs. 7 and 8 are enlarged sections through the cap seam before and after soldering. Fig. 9 is a central vertical section showing my invention as applied to ,so 'i am operi top con iii which the eiod seems formed hy double seeming instead of by soldering. Fig. l@ is o pe 'l cctive View oi o. sheet of tiii plz-tte in the fist, furnished with my protective Coating: ll is ""'fe 'view of olie of2 th i l' @L l2 is o. detail peli-speel cmi cup. the drawing ifi, represents the emo bony, l@ the con heads zuid C the coli cap.

l is the protective costing on tl e limer surface of the con body, con heads one. een

' costing, mid the vtliielmess of (.4 cap, the same heilig o dry, hard, solid, oily adherent hlm of liiiseed oil, or other equitieleiit materiel. This costing1 D betere the side seein a, end seem o arid cap seem e are soldered, extends into and through the seems or between the members ot the seem t-ohe 'limited hy the solder. .l3nt when the solder, heilt and 'dus are applied to the seam to f 'fm the soldered joint or seam, this protective coating has no interfering octioii` to prevent the proper and perfect uni-ori oli the ports hy the solder the costing" io toet apparently acting itself, iii e measure, os e dus, and tending) rather to facilitate than to interfere with the soldering' operation; and st the seme time the protective coating pre vente the solder ll idowihg into the inside oit the can through the seem and costing or smet-trim@ the inside surface of the een edjocelot to the seem with solder, hss heretotore always been the esse. The liest ond dut: employed in the soldering,- operation does not burn, blisterg destroy or hiiiriously iatleet the protective coating D edjecerit to the een seems, hut lee-Ves the same en d extending over the entire interior sur-,terze of the een et the seam es Well elsewhere.. y

Gr represents the tio Coating o'n the tiri Lole-te sheet A-from which the ceri heads body lolsrilrs are and termed. lid etuis of the open top Voriety Where the top and bottom con heads are united to the ceri loody hy double or other folded seams, ss illustrated in 9 the com esp end the soldered seem uniting the een @op to the top heed es Well es the soldered seems uniting the een heads to the con body, ere omitted. lil the drawing it will he understood, lo-y those skilled in the art, that the ,thickness of the tii plete, the thioliiess of the tiri costing are ell greatly being necessary for oleorness iti the drawing'.

claim: 1

l. A. sheet metal preserving een having ports, edge portions of 1which are adept-ed to be united loy a solder seem, and provided with a herd, dry, solid, firmly sdherent, tasteless, odorless ond idworless, :dus-acting protective costing extending to the extreme edges thereof and covering the of illustration entire il terior sorteos of the the oortions within and adjacent to the seem-:to ing edge portions es Well :is elsewl sold dim-acting, qProtective costing zt'reeiy inittiiig the solder, Wheii applied, to displace the seme to the extent to which the solder Hows into the seem, substantially speciv lied.,

2. A sheet metal preserving een l ports, the edge portions or Wl.' adopted to be united loy e, soldere and provided with e herd, dry, soladherent, tasteless, odorless flux-acting protective costing, incl seed oil, errteridiiig to the erft thereof and covering theeritire i tace of the cari the portions within sind odjsceot to the seeiiisforrhiog "ooi es Well es elsewhere, seid duecti l tive costing freely permitting th notion of the soldered seem, substantially es speer tled,

- 3. sheet motel preserving een heyirlg parte, the edge portions o'l3V which adopted to be united hy e solder seem, provided With e herd, dry, tl rely adherent, tasteless, odorless y tleyorless dui'i-eetiiig costing exteiidi to the e5:- treme edges thereo and coyeri rf also interior surface ot the een, onweer costing enabling the coated sesm-forloirig edge portions to be solderoeel` ley losing displaced from those portions "Where the solder flows when applied, sulssteotielly speci-- itled l i il., il* sheet metal preserving ooh loody top and loottohrhesds, the edge portions of which ore edepted 'to 7oe united ley soldered seem, Astrid eeeh provided with herd, dry, solid, rholy adherent oteetiye coating extending to the extr oe edges thereon? siedV eoveriri'gelso the interior surfeces thereof, including the portions in end adjacent to the sesmitormihg edge portions, seid protective costing acting es tls/"1 to freely permit the formation e355 the soldered seems, substantially es Ispeoiled,

5. sheet instel preserving com parte, the edge portions of which sf'e adapted to be uriitedhy s solder seem, sind provided with e. herd, dry2 solid., n hereot, tasteless, odorless and yorless flux-ectiiig costing, including lios-eed oil, ezttendingq to the extreme edges thereolt and covering the yentire interior sorteos of the can, seid iliX-eeting' costing ensl'ililog the coated sesm-forroiiiga edgev portions to he.

soldered,v suhstsritidlly es speeiiiedn 6. A sheet metall preseryiiil1 een having ports, the .edge portions or which are adopted to loe united ley msoldered seem, end provided with e herd, dry3 solid, lirrely lll@ adherent, protective eoetirig, including; lin-- seed oil, seid costing freely permit -mg ports Loeeee covered tliereloyv to besoldered, the eoeting l Lturpeiitine, said'oil'vand turpentine coating il@ 'acting as a. flux and adapted to be displaced enabling the seam-'forming edge portions of from those portions Where the solder is api the sheet to be Jfreely soldered, substantilly l plied, substantially as specified.` l! as specified.

7. A sheet/metal preserving canhavingi parts, the edge portions of which are l; s adapted to be united by a solder seam, and l' Witnesses: provided with a hard, dry, solid, freely adl EDMUND ADCOCK, herent protective coating of linseed oil and x l MUNDAY.

JoHN e. HoDesoN. 

